This is more beginner-friendly, and means fans can grow their collection without needing to invest money. All Booster packs in MTG Arena have a chance to contain Wildcards, which are blank cards in any of MTG's rarities. Related: Magic: The Gathering: How Tales of Middle-earth Solves a Decade-old ProblemĪdditionally, instead of buying or trading cards, MTG Arena allows players to craft the cards they need using Wildcards.